Permutation-lock



M. KOSICH.

PERMUTATION LOCK. APPUcATmN FILED MAY 1. 1919.

Patented June 8, 1920.

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Ill/[ABK KOSICH, 0F NEW YORK, N. Y.

.PERMUTATION-LOCK.

Specification of Letters Patent.

Patented J une 8, 1929.

Application filed May l, 1919. Serial No. 294,028.

T0 all whom z' may concern:

Be it known that I, MARK Iosrcn, a subject of the Montenegrin Goverment,residing at New York in the county of New York and State of ew York,have invented certain new and useful Improvements in Fermutation-Locks;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has for its principal object to provide an extremely simpleand inexpensive, yet a highly efficient and durable permutation lookdesigned primarily for use upon suit-cases and trunks, although it is ofcourse applicable for numerous other purposes.

In carrying out the above end, a stem is provided, slidable in a casingand carrying an arm formingV the bolt of the lock, and a plurality ofrotary tumblers are mounted in said casing and on said stein fornormally locking the latter against movement, a further object of theinvention being to provide novel means for confining the tumblers in thecasing.

Other objects are to provide for turning the stem with respect to thebolt to change the combination of the lock; to provide a single armforming both the bolt and an operating handle therefor and to devise anovel form of casing for the operating parts of the lock. y

With the foregoing in view, the invention resides in the novelconstruction and arrangement of parts hereinafter fully described andclaimed, reference being made to the accompanying drawing.

Figure 1 is a top plan view of a trunk showing the application of thelock.

FigsfQ and 3 are vertical sections on the plane indicated by the lines2--3 of Figs. 1 and 5, showing the device respectively in locked andreleased positions. j

Fig. 4 is a horizontal section on the plane of line 4 4 of Fig. 2, partsbeing in elevation.

Fig. 5 is a vertical transverse section on the plane indicated by line5-5 of Fig. Q.

Fig. 6 is a detail horizontal section on the plane of line-G of Fig. 5,showing one of the keepers.

Fig. 7 is a detail side elevation, partly in section, showing the stemand the bolt forming arms carried thereby.

Fig. 8 is an end viewJ of one of the tuinblers.

Fig. 9 is a perspective view of one of the rings which are adjustablearound the tum blers to change the combination of the lock.-

In the drawing above briefly described, the numeral 1 designates anapproximately cylindrical casing open along one side as seen at 2, whilethe opposite side of said casing is formed with longitudinal slots 3 and4 which open through its ends. At the inner end of the slot 3, anannular abutment 5 is secured in the casing 1 by a screw or the like G,while a tubular plug 7 is inserted in the opposite end of the casing andis provided with a slot 8 registering with the slot 4. Any means such asa screw 9 may be employed for securing the plug 7 in place.

Confined between the abutment 5 and the plug 7, are a plurality ofrotary tumblers 10 preferably having rings 11 carrying numbers or otherindicia 12, said rings being circumferentially adjustable on thetumblers to vary 4the combination of the lock. rIhe several tumblers arepreferably spaced apart by collars 13 secured in the casing 1 by anysuitable means such as screws 14. Each tumbler is provided with alongitudinal internal groove 15 and these grooves cooperate withprojections 16 on a stem 17 which passes slidably through the tumbler-s.`When the several tuinblers 10 are turned to predetermined positions,all of the grooves 15 are alined with their respective projections 16and consequently the stem 17 is allowed to shift to release the lock.When the tumblers are otherwise set however said stem cannot be moved. V

I have shown the stein 17 provided with two lateral arms 18 and 19, theformer passing through slot 8, while the latter pro jects through theregistering slots 4 and 8. It will be understood however that in someforms of the lock, only one of these arms may be used, and if the arm 19is eliminated, the slots 4 and 8 will be unnecessary and the plug 7 neednot then be made of tubular form. When the arm 19 is used, it may wellbe secured on the stein 17 by a set screw 2O receivable in a peripheralgroove 21 in said stem, but it will be understood that other attachingmeans for said arm may be provided.

The arm 18 is by preference mounted on the stem 17 in the novel mannershown, said arm having an opening 22 through which the stem passes andbeing clamped against an external shoulder 23 on said stem by a nut 24which is threaded on the latter. Suitable means such as a lug 25 andnotches 26 may be employed for holding the arm and stem against relativeturning although in some instances friction might be relied upon. Whenthe lug and notches are employed, they are formed respectively on thearm 18 and the shoulder 28. By loosening the nut 24 and turning the stem17 within the opening 22, the combination of a lock may be varied in anumber of ways, and by utilizing this adjustment in connection with theadjustable rings 11, it is insured that'a great number of combinationsmay be obtained so that no two locks shall possess the same combination.l/Vhen the stem 17 is turned in the arm 18, it is of course similarlyturned in arm 19, if the latter be used, by loosening the set screw 20.After the adjustment has been made, Vthis screw and the nut 24tare againtightened.

The arm 18 preferably extends in opposite directions from the stem 17,one end of said arm forming a bolt while the other end thereof projectsfrom the open side 2 of the casing 1 and provides'an operating handle 27for operating the look when released. Although the arm 418 is shownconstructed in this manner, it will be obvious that this feature mightbe shifted to the arm 19,if desirable and furthermore it will be obviousthat other handles may be employed if found desirable.

The free ends of the arms 18 and 19 may be constructed in any preferredmanner, but I have shown them provided with openings 28 to receiverelatively fixed keepers 29. Obviously, the bolt arms 18 and 19 mightwell be provided with projections and the keepers formed with openingsbut since this is a mere reversal, it need not be illustrated.

Then the lock is applied to a trunk or the like as shown in the drawing,it is preferably positioned in a recess 30 in the usual hinged top 31,and the casing 1 is provided along the edges of its open side 2, withlateral flanges 32 which are secured to the top 31 by bolts or the like33. These bolts mai also secure in place a cover plate 34 having a slot35 through which the handle 27 projects, and other slots 36 vthroughwhich the tumblers 10 are accessible for turning them as required. Thefront edge of the 'plate 34 by preference turns downwardly at 87 at theedge of the top 31 to protect the latter, and in order to guard thehandle 27 against injury 4when the trunk, suit-case or the like isroughly handled, the horizontal portion of the plate in question is bypreference provided with upwardly stamped projections 88.

The device is locked by shifting the handle 27 to the left of Figs. 2and 3 and by then turning the tumblers 10 until their indicia 12indicates that the grooves 15 are out of alinement with the projections16. The bolts 18 and 19 are thus held properly engaged with the keepers29, since the stem 17 cannot shift. To release the lock, the tumblersare turned to predetermined positions, thereby alining the grooves andprojections 15 and 1G, whereupon the handle 27 may be shifted to theright to disengage'the bolts and keepers.

j Since probably the best results are obtainable from the generalconstruction shown, itmay be followed, but within the scope of theinvention as claimed, numerous minor changes may be made. It may beagain pointed out that any number of bolts may be used, that these boltsmay vary in design as occasion may dictate, and that the lock is notrestricted in use to any particular field, but may be installed whereverapplicable.

I claim:

1. In a permutation lock, an elongated cylindrical casing having alongitudinal slot, a central, slidable stem' disposed longitudinally insaid casing, a bolt forming arm rigidly carried by and movable bodilywith said stem, said arm extending laterally through said slot to holdsaid stem against rotation, a plurality of tumblers rotatable on saidstem and held `against sliding in said casing, said stem and tumblershaving coacting means for locking the former against sliding, and ahandle for operating said bolt.

2. In a permutation lock, an elongated cylindrical casing, an abutmentin said casing, a tubularplug in one end of said casing, said plug andcasing having registering slots, a plurality of rotary tumblers confinedin said casing between said abutment and said plug, a central stempassing through said tumblers, said tumblers and stem hav ing coactingmeans for normally locking the latter against sliding, an arm carried bysaid stem and movable bodily therewith, said arm extending laterallythrough said registering slots and forming a bolt, and a handle forsliding said stem.

Y 3. ln a permutation lock, an elongated casing, a slidable stem in saidcasing, tumblers in said casing, said tumblers and stem having coactingmeans for locking the latter against sliding, a handle for sliding saidstem when released, and a lateral bolt'forming arm movable bodily withsaid stem and forming a bolt, means being provided to permit turning ofsaid stem with respect to said arm to change the combination of thelock, said casing having a slot through which said arm extends.

4. In a permutation lock, an elongated' casing, a slidable stem in saidcasing, tumblers in said casing, said tumblers and stem having coactingmeansl for looking the latter against sliding, a handle for sliding saidstem when released, a lateral bolt forming arm through which said stempasses, a shoulder on said stem, and a nut threaded on said stem forclamping said arm against said shoulder to normally prevent turning ofsaid stem, loosening of said nut allowing said stem to turn, whereby thecombination of the lock may be varied, said casing having a slot throughwhich said arm extends.

5. In a permutation lock, an elongated Cylindrical casing open along oneside and having lateral attaching iianges along the sides of theopening, the opposed side of said easing having a slot, a stem slidablein said casing and having a bolt forming arm extending through said slotand a handle proj eeting through the-open side of the easing, tumblersin said easing for looking said stem, and a cover plate for the openside of the easing, said plate having openings to eX- pose said tumblersand handle for operation.

In testimony whereof I have hereunto set my hand.

MARK KOSICH.

